Improved shoes for car-brakes



J. BING.

Car- Brake Shoe.

v Patented Oct. 6, 1863.

W SeJ 322i UNITED STATES PATENT OFFICE.

JAMES RING, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED SHOES FOR CAR-BRAKES.

Specification forming part of Letters Patent No. 40,156, dated October6, 1863.

To all whom it may concern.-

Be it known that 1, JAMES BING, of Philadelphia, Pennsylvania, haveinvented an Im provement in Shoes for Gar-Brakes and I do hereby declarethe following to be a full, clear, and exact description of the same,reference being bad to the accompanying drawings, and to the letters ofreference marked thereon.

My invention relates to the construction of shoes or rubber s forear-wheels; and it consists, first, in constructing the shoe of twoparts in the peculiar manner described hereinafter, so that the part incontact with the wheel can accommodate itself to the same; secondly, inthe peculiar combination described hereinafter of the two parts of theshoe, the clevis by which the shoe is suspended to the truck and thebolt which secures the clcvis to the shoe, and the two parts of the shoeto each other.

In order to enable others skilled in this class of mechanism to make andapply my invention, I will now proceed to describe its construction andoperation.

011 reference to the accompanying drawings, which form a part of thisspecification, Figure 1 is a vertical section ofmyimproved shoe forrailway car-brakes; Fig. 2, a sectional plan on the line 1 2, Fig. l,and Fig. 3; a front view of the shoe.

Similar letters referto similar parts throughout the several views.

Ais the shoe, and B the sole, the latter being formed to fit theperiphery of the car- Wheel, (part of which is shown by the line 00,)and having a lug, a, which fits between the lugs 12 and b on the shoe.

D is a clevis, the upper end of which is suspended to the truck of therailway-car, the lower end being arranged to embrace the lugs b and b ofthe shoe, a bolt, G, passing through the lower end of the clevis,through the lugs band b of the shoe, and through the lug a of the soleB.

It will be observed on reference to Fig. 2 that the lug a is madetapering, and that the bolt G fits loosely on the said lug as well as inthe lugs b and b, so that the sole is selfadjustable laterally, for apurpose described hereinafter. A projection, d, on the sole B fits intoa socket in the shoe in such a manner that the sole can vibratelaterally in the said socket, while the projection serves to maintainthe shoe and sole in their proper relative positions.

H is the usual brake-beam, one end of which fits into a recess in and issecured to the shoe A, the other end of the beam being secured to asimilar shoe on the opposite side of the car-truck. 1

The peripheries of car-wheels are always beveled or inclined so that itbecomes necessary to make the soles of the ordinary shoes or rubbers ot'a coresponding bevel, one shoe at one end of the beam being beveled inone direction, and the other shoe, at the opposite end of the beam,being beveled in a contrary direction. Even when the usual shoes areproperly fitted to the beveled peripheries of the wheels, the lateralmovement. of the axles as the wheels traverse curves of the track issuch that the ordinary shoes cannot fit accurately at all times. Anotherevil attending the use of ordinary shoes or rubbers is that as thelateral movement of the axles takes place an undue strain is imparted tothe brakebeam. These difficulties are avoided by my invention, inasmuchas the sole B is permitted to have a lateral rocking motion on the shoe,and can at once accommodate itself to the bevel of the wheel or to anyvariation caused in that bevel by the lateral movement of the axle.

Another improvement in my invention is the peculiarly simple arrangementoftheclevis which supports the shoe, the bolt G serving the purpose ofconnecting the clevis to the shoe and the latter to the sole.

I claim as my invention and desire to secure by Letters Patent- 1. Theshoe A and sole 13, both being constructed anti adapted to each other,substantially as described, so that the sole can have a lateral rockingmovement on the shoe, for the purpose specified.

2. The combination of shoe A, sole B, clevis D, and bolt G, the wholebeing constructed and arranged substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

' JAMES BING.

Witnesses HENRY HowsoN, J ()HN WHITE.

